Remote control system.



w. M. SCOTT. 7 REMOTE CONTROL SYSTEM.

APPLICATION FILED APR. 23, 1907.

1,106,1 16. Patented Aug. 4, 1914.

2 SHEETSSHEET l.

E if 47 19i t 11 use 48 W. M. SCOTT.

REMOTE CONTROL SYSTEM.

APPLICATION FILED APR. 23, 1907.

1,106,1 16, Patented Aug.4,1914.

2' SHBETSSHEET 2.

, UNITED STATES PigENT OFFICE.

WILLIAM M. SCOTT, F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE'CUTTEBELECTRICAL AND MANUFACTURING COMPANY, A CORPORATION 0E NEW JERSEY.

REMOTE CONTROL SYSTEM.

.T 0 all whom it may concern:

Be it known that 1, WILLIAM M. SooT'r, a citizen of the United States,reslding at Philadelphia, in the county of Ph ladelphia and State ofPennsylvania, have invented a new and useful Remote Control System, ofwhich the following is a specification. 7

For an illustration of a form my invention may take reference is to behad to the accompanying drawings, in which:

Figure l'is a side elevat1onal view of the circuit breaker and itsoperating and control mechanism, a portion of the motor operatedmechanism being omitted. Fig. 2 1s a front elevational view of thecircuit breaker and its operating and co-ntrolmechanism. Fig. 3 is afront elevational view, partlyun section, of the joint between theconnecting rod and the circuit breaker operat ng lever. Fig. 4'is a sideview, partly 111560131011, of the connecting rod connection with the motor operated mechanism; Fig. 5 is a deta l View of the driving anddriven cranks. Fig. 6 is a diagrammatic view of the control system.

Referring to said drawings, 1 represents a base of suitable insulatingmaterial such as slate, marble, or the like, upon which are secured themain circuit breaker contact limited movement upon the extension 17.

blocks'2 and 3 bridged by the laminated movable contact 4 secured to,but insulated from, thearm 5 pivoted at 6 to the bracket or housing 7,which is secured upon the base 1. v

, 8 and 9 are'the metallic and carbon movable shunt contactsrespectively which co operate respectively with the stationaryme tallic.and carbon shunt contacts 10 and 11. The contacts 8 and 9 are carried'bybut insulated from the-pivoted arm '5 which carries. the laminatedcontact 4. Pivoted at 12 in the'arm'5 is a roller13, which is engaged bythe cam surface 14 on the cam member 15 pivoted to-the bracket 7 at 16.The cam meniberextendsoutwardly beyond the pivot 16 as shown at 17.' Theoperators handle or lever 18 is pivoted at 19 on the extension l7of thecam member and .is capable of The extent of movement is limited by thesurfaces 20 and 21 as to a counter-clockwisemovement and by the surfaces22 in a clockwise direction.

Secured to or integral with the operators Specification of LettersPatent. Patented A g; 4,1914 Application filed April 23, 1907.

Serial No. 369,714.

whose tail 24 is adapted, upon counterclockwise movement of theoperators handle 18 upon the pivot 19, to strike the projec tion 25 ofthe latch 26 pivoted to the housin at 27, and engaging by its hook endthe nected'to the armature of the reverse current or reverse energytripping coils 34.

I Extending transversely through the oper- -ators lever 18 is a pinwhich fits within the metal bushing 36 within the insulating bushing 37,which; latter is secured within the eye 38 upon the rod 39. Theinsulating bushing 37 serves to insulate the rod 39, and the partsconnected thereto below, from the operatorshandle and, in fact, from theentire circuit breaker. The rod 39 carries the transversely extendingpin 40 which plays substantially vertically in the slot 41 in thebifurcated head 42 screw threaded upon the connecting rod or pitman 43.The rod 43 is screw threaded at itsvlower-endlinto the member 44 havingextension 45. The extension 45 and plate are held together by the bolts47, the separators 48 intervening. Approximate their lower ends, theextension 45 and plate 46 have spherical depressions or sockets adaptedto embrace the ball 49 formed upon or securedupon'the crank'pin 50. Thisconstruction :forms a universal joint between the crank pin and theconnecting rod 43, which, with the pin connection 40, obviatesthene'ce'ssity for exact mechanical alinenient between the circuitbreaker and the motor driven apparatus about to be described. I

he :crank pin 50 is common to the two-- cranks 51 and 52.' The crank 51is secured upon the shaft 53 having a bearing 54 upon the base 55. Onthe other end of the shaft 53 is secured the crank 56 which is in thepath of travel of the crank 57 secured upon lever 18 in an inwardlyextending lug 23' bears upon the c'ommutator'ring or so the shaft 58having the bearings 59 and 60 upon the base 55. Secured upon the shaft58 between the bearings 59 and 60, is the worm wheel 61 which mesheswith the worm 62 secured upon the shaft '63 of the electric motor M,mounted upon the base 64. The worm 62 terminates at its outer end in aconically socketed member 65, whose inner conical surface is the surfaceof what may betermed a brake wheel.

66 is a conically surfaced brake shoe pivo ted at 67 to the bifurcatedlever 68 which is in turn pivoted at 69 to the base 55. The upper end ofthe lever 68 has a transversely extendin member 70 to whose ends 71 areconnecte spiral springs 72 connected at their other ends to ears 73 uponopposite sides of the iron magnet jacket or housin 74, which issupported by brackets 75 and 76 upon the frame of the motor M. Withinthe acket 74 is a magnet core 77 pierced horizontally and axially topermit the passage of the rod 78 which presses with its outer endagainst the lever 68 and which is secured at its inner end to thearmature 79 of the magnet, which is the brake lifting magnet whosewinding 80 is dis osed between the core 77 and the insi e of the' jacket74.

The inner end of the crank 52 is secured to the disk 81 of insulatingmaterial, such as hard fiber. That disk, with a similar disk 82 and thecommutator rings or se merits 83 and 84, rotate, as driven by t e crank52, upon the shaft 85 secured upon the plate 86, of slateor othersuitable insubus bar or conductor 92 by the conductor 93 to the brush88, which 'bears on cominutator' ring 83, and froin the conductor 91 byconductor 94, through the laminated brid e 4 of the circuit breaker suchas shown in ig. 1. The generator G is connected across the conductors 91and 92 when the circuit breaker is in'circuit closing osition. G is agenerator, or other source 0 energy, or motor, or other translatingdevice, whose connection with the conductors 91 and 92 is to becontrolled both automatically by the circuit breaker and from a distanceby the switch 95,as hereafter described. The conductor 94 connects alsowith the brush 89 which ent 84. The'circumference ofthe ring 83 is notcontinuous, but is interrupted by insulating material 83, there beingalso a sudden drop,

circuit, and similarly, the circumference of the ring 84 isdiscontinuous, made so by the insulating material 84'. The rings 83 and84 are in electrical communication with the shaft 85 from which leadsthe conductor 96 to one brush of the armature Ma of the motor M; theother brush connects by conductor 97 with one terminal of the seriesfield winding Sf of the motor M, in parallel with which is connected thewinding 80 of the brake lifting ma et. The other terminal of the seriesfiel is joined by conductor 98,- which extends to the distant stationfrom which the control is to be effected, to the switch 95, located atthe distant control station. The switch member 95 is adapted to restupon any one of the three contacts 99, 100, or 101, of which 99 may beconnected to a positive conductor of the system through the windin of.underload magnet 102, while 101 ma connected to a ne ative'conductor othe system through t e winding of the underload magnet 103. L is anordinary incandescent lamp connected between the contacts 99 and 100 toserve as an indicator.

The operation of the system and apparer ratus is as follows: With thecircuit brea in circuit closing position, as shown in Figs. 1 and 2,upon the occurrence of an abnormal current flow through the circuitbreaker, or upon the occurrence of reversed current or reversed energyfiow, the latch 26 will be actuated either by the armature 32 of theoverload magnet or by the rod 33 of the reversed energy flow trippingmechanism, to release the member 17. Upon such release the sprin 15'will contract and rotate the cam mem r 15 in a counter-clockwisedirection about its pivot 16, as viewed in Fi 1. The laminated contactmember 4 will t en separate from the main terminal blocks 2 and 3,thereafter the metallic shunt contact 8 will separate from the metallicshunt contact 10, and finally the carbon 9 will separate from the carbon11, and at these carbons the final a will occur-in the mannerwellunderstood 1n the circuit breaker art. As the cam member rotates, asdescribed, about the pivot 16, the o rators handle 18 raises theconnecting r 43 and rotates the cranks .51 and 52- to a position justshort of dead center, just to the left of the uppermost 'tion they cantake as viewed in Fig. 1.

t 0 revent reaching or passing the upper center, an extension 57 isprovided on driv ing crank 57, and the lug 57? thereon extends into thepath of'the driven crank, as seen in Fi 5. The generator or other dovice G has t on been cut oil by the opening of the-circuit breaker fromcommunication with the bus bars'or conductors 91 and 92, and thecrank'52 has rotated the commutator rings 83 and 84 to such positionthat the brush 88 has again come into contact with armature, throughconductor 96, through 5 crank 56, driving crank 51 and pulling the rod 7locked and the brush 88 has snapped off the the commutator ring 83 aftertraversing the insulation 86. The switch 95, at the distant stationbeing .on the contact 100, there is a circuit from the positiveconductor through magnet 102 to contact 99 through lamp L, contact 100,switchlever 95, conductor 98, brake winding and field winding and motorcommutator ring 83, brush 88 to conductor 92. The lam in such case willglow indicating that t e apparatus is in position to be motor operatedto close the breaker. The operator thenthrows the switch 95 onto contact99, the armature IOtbeing held by magnet 102, whereupon the motor fieldand armature will be energized, as will also the brake magnet, whichcauses its armature 79 to be attracted and to thrust upon the rod 7 8 tolift the brake 'sho'e 66 carried by the lever 68. The motor then startsand rotates the. worm wheel until the crank 57 overtakesthe crank 56which is .in" nearly uppermost position as described, and then pressesagainst 43 downwardly to the position shown in Fi 1, in which positionthe circuit breaker 1s ring 83 at 837. This opens the motor circuit anddeenergizes the brake magnet, whereupon the sprin s 72 set the brake andstop the motor wit the parts in position as shown in Fig. 1.Simultaneously, magnet: 102 releases armature 104, and switch arm; 95returns to contact 100 under influence of centering springs 106 and 107.The apparatus is then ready to respond automatically again to thecircuit breaker tripping magnets as just described. Or if it is desiredto trip the. circuit breaker from the distant station, the operator willthrow the lever 95. into engagement with contact 101, where-' uponcurrent will flow from the positive; 'c onduc to r or bus bar 91throughconductor i 94 to brush 89, commutator ring 84, con-i ductor 96, eneri'zin the motor, a'rmaturei and field as be ore escribed and the brake ilifting magnet, whereupon the motor will; rotate to drive the cranks 51and 52 through I a short, distance in a clockwise direction from itsposition shown in Fig. 1, whereupon the 1 rod 43 is' lifted, the bottomof the slot 41 en aging thepin 40, thus lifting the operators ever 18,whereu on the lug 23 engages by its tail24 upon t e lip 25 of the latch26"t'o disenga e or unlock the circuit breaker which t en opens aspreviously described, the extent of movement of the handle 18 withrespect to member 17 being-limited by i its face 21 coming into contactwith the face 20 on the member 17. After being thus unlocked, thecircuit breaker then moves to full open osition, the o erators handlebeing pulle upwardly, pul ing the rod 43'with it and the parts assumethe open circuit position with the crank 52 just short of the deadcenter position at the to as previously described in connection witFig.1. The brush 89 haspassed onto insulation 84. So it is that thecircuit breaker may be motor tripped from the'distantstation. Since aslight movement of the motor only is necessary for this purpose thecircumferential extent of the commutator ring 84 need be relativelysmall only, as shown in Fig. 6, while the circumferential extent of thering 83 may be correspondingly larger; As before stated when the partsassume full open circuit position the commutator has rotated soas tobring the ring 83 again in communication with the brush 88, whereu onmoving the lever 95 to the contact 99 will cause the motor vto' againclose the breaker. Care should be taken that brush 88 can not be incontact with ring 83 at the same time brush 89 is in contact with ring84, else conductors 91 and 92 would be short circuited.

lVhat I claim is:

I 1. In combination, a main switch, a latch for restrainin said switchin normal position, a lever fbr moving said switch to normal positionand for actuating said latch to unlock said switch upon reverse movementof said lover, a motor operating always in one direction for actuatingsaid lever in either direction, auxiliary switching mechanismcontrolling said motor, and a double throw control switch cooperatingwith said auxiliary switching mechanism, said control switch in oneposition energizing said motor to actuatesaid latch and in the otherposition energizingsaid motor to actuate said lever in oppositedirection to move said main switch to normal position.

2. in combination, a main switch, a latch for restraining said switch innormal position, a lever for moving said switch to normal position andfor actuating said latch to unlocksaid switch upon reverse movement ofsaid lever, amotor operating always in one direction for actuating saidlever in either direction, and a double throw controlswitch andconnections controlling said motor, said control switch in one positioneuergizing said motor for actuating said latch to trip said main switch,and in the other position controlling said motor to actuate said leverin opposite direction to move saidmain switch to normal position.

3. In c0mbinati0n',a main switch, a latch. for. restraining said switchin normal position, alever for moving said switch to normal position andfor actuating said latch to unlock said switch upon reverse movementthrough said switching mechanism, said control switch in one positionenergizing said motor to actuate said latch and in the other positionenergizing said motor to move said main switch to normal position andelectroresponsive means for actuating said latch independently of saidmotor. 7

4. In combination, a main switch, a latch for restraining said switch innormal position, a lever for moving said switch to normal position andfor actuating said latchto unlock said switch upon reverse movement ofsaid lever, a motor operating always in one direction for actuat' saidlever in either direction, an auxi iary switching mechanism movable indefinite relation with said lever, said switching mechanism having acontact controlling energization of said motor for actuating saidlatchto trip said main switch and another contact controllin energization ofsaid motor for moving sai main switch to locked position and means foractuating said latch independently of said motor. v v c 5.In'combination, a main switch, a latch for restraining said switch innormal position, a lever for moving said switch to normal position andfor actuating said latch to unlock said switch upon reverse movement ofsaid lever, a motor operati alwaysin one direction for actuatingsailever in either direction, an auxiliary switching mechanism movable indefinite relation with said lever, said switching mechanism having acontact controlling energization of said motor for actuating said latchto trip said main switch and another contact controlling energization ofsaid motor for moving said main switch to locked position, and a doublethrow.

control switch controlling said motor through said auxiliary switchingmechanism, and electro-responsive means for actuating said latchindependently of said motor.

6. In combination, a,main switch, a latch for restraining said switch innormal position, a lever for moving said switch to normal position andfor actuating said latch to unlock saidswitch upon reverse movement ofsaid lever, a motor operating always in one direction for actuating saidlever in either direction, a lost motion connection between said motorand said lever wherebv when said latch is actuated said main switc maymove inde ndently of said motor, and auxiliary switc ing mechanismmovable in definite relation with said lever controlling successiveenergizations of said motor for actuating said latch and for moving saidmain switch to locked position, and electro-responsive means foractuating said latch independently of said motor.

7. In combination, a main switch, a latch for restraining said switch innormal position, a lever for moving said switch-to nor-- mal positionand for actuating said latch to unlock said switch upon reverse movementof said lever, a motor operating always in one direction for actuatingsaid lever in either direction, a lost motion connection between saidmotor and said lever wherebv when said latch is actuated said main switcmay move independently of said motor, auxiliary switching mechanismmovable in definite relation with said lever controlling successiveenergizations of said motor for actuating said latch and for moving saidmain switch to locked position, and an operators switch controlling saidmotor through said auxiliary switchi mechanism, and electroresponsivemeans or actuating said latch independently of said motor.

8. In combination, a main switch, a latch for restrainin said switch innormal position, a lever or moving said switch to normal position andfor actuating said latch to unlock said switch upon reverse movement ofsaid lever,'a motor operating always in one direction for actuating saidlever in either direction a lost motion rod and crank connectionrbetweensaid motor and said lever, whereby said main switch when tripped byactuation of said latch moves independently of said motor, and auxiliaryswitchin mec anism movable in definite relation wit said levercontrolling successive energizetions of said motor to actuate said latchand return said main switch to normal position, and eIectro-respon'sivemeans for actuating said latch independently of said motor.

9. In combination, a main switch, a latch for restraining said switch innormal position, a lever for moving said switch to normal position andfor actuating said latch to unlock said switch upon reverse movement ofsaid lever, a motor operating always in one direction for actuating saidlever in either direction, a lost motion rod and crank connectionbetween said motor and said lever, whereby said main switch when trippedby actuation of said latch moves independentl of said motor, auxiliaryswitchin mec anism movable in definite relation wit said levercontrolling successive energizations of said motor to actuate said latchand return said main switch to normal position, and an operators switchcontrollin energization of said motor through sai auxiliary switchingmechanism, and electromesponsive means for actuating said latch independently of said motor.

10. In combination, a main switch, a latch for restraining said switchin normal position, a motor operating always in one direction foractuating said latch to trip said main switch and to return said mainswitch to normal position, and auxiliary switchi mechanism movable indefinite relation wi said main switch controllirig successiveenergizations of said motor or tripping said main switch and returningthe same to normal position, and electro-responsive means for actuatingsaid latch independently of said motor. 7

11. In combination, a main switch, a latch for restraining said switchin normal position, a motor operating always in one direction foractuating said latch to trip said main -switch and to return said mainswitch to normal position, auxiliary switching mechanism movable indefinite relation with said main switch controlling successiveenergizations of said motor for tripping said main switch and returningthe same to normal osition, and an operators switch controllm saidenergizations of said motor througi said auxiliary switching mechanism,and electro-responsive means for actusaid motor, and a stop moving indefinite.

relation with respect to, said motor for preventing said rod and crankconnection assuming a dead center position.

13. In combination, a movable contact -member, a rod and crankconnection with said contact member, a motor, a second crank driventhereby, a lost motion connection between said cranks, and a stop onsaid second crank for preventing said rod and crank connection assumingdead-center position.

14. In combination, an electric switch, an actuator therefor to move thesame to normal position, means for restraining said switch in normalposition, a motor, a rod and crank connection with said actuator, a lostmotion connection between said motor and said rod and crank connection,means on said actuator for releasing said switch, and means forpreventing said rod and crank connection assuming dead-center position.

15. In combination, an electrlc switch, a latch for restraining the samein normal position, an actuator for moving. said switch to normalposition and for actuating said latch upon reverse movement, a motor foroperating said actuator in both directions, and a switch moving inuni'son with said first named switch and connected in the circuit,ofsaid motorfor breaking the motor circuit when saidelectric switch hasreached circuit closing position and for closing the circuit of saidmotor for tripping said electricswitch, and electro-rsponsive means foractuating said latch independently of said motor.

16. In combination, a motor, a crank driven thereby, a movable contactmember of a switch, means foroperating the same, an actuator havinglimited motion with respect to said operating means, a rod and crankconnection with said actuator, said first mentioned crank having lostmotion with respect to said rod and crank connection, and means on saidfirst mentioned crank for preventing said rod and crank connectionassuming dead-center position.

17. In combination, an electric switch, means independent of theoperating mecha nism for said switch for restraining the same in normalposition, a lever for moving said switch to normal position and foractuating saidrestraining means upon reverse movement, a motor foractuating said lever in either direction, and motor controlling contactsmovable in definite relation with the moving parts of said switch, oneof said contacts controlling said motor for actuating said lever in onedirection, and the other contact controlling said motor for actuatingsaid lever in reverse direction.

18. In combination, an electric. switch, means independent of theoperating mechanism for said switch for restraining the same in normalposition, a lever for moving said switch to normal position and foractuating said restraining means upon reverse movement, a motoroperating always in one direction for actuating said lever in eitherdirection, and motor controlling contacts movable in definite relationwith the moving parts of said switch, one of said contacts controllingsaid motor for actuating lever in one direction, and the other contactcontrolling said motor for actuating said lever in reverse direction.

19. In combination, an electric switch. means independent of theoperating mechanism for said switch for restraining the same in normalposition, a lever for moving said switch to normal position and for actuating said restraining means upon reverse movement, a motor foractuating said lever in either direction, motor controlling contactsmovable in definite relation with the moving parts of said switch, oneof said contacts controlling said motor for actuating said lever in onedirection, and the other contact controlling said motor for actuatingsaid lever in reverse direction. and a lost motion connection betweensaid motor and said lever, whereby said switch moves independently ofsaid motor when tripped thereby.

20. In combination, an electric switch, means'independent of theoperating mechanism for said switch for restraining the same in normalposition, a lever for moving said switch to normal position and for 15center contact controlling said motor for actuating i mal position andfor actuating said latch to said lever in reverse direction. and a lostmotion connection between said motor and said lever, whereby said switchmoves independently of said motor when tripped thereby.

21. In combination, a. movable contact member, a latch therefor, anactuator for actuating said latch or said con- 10 tact member, a rod andcrank connection with said actuator, a motor, a second crank driventhereby, a lost motion connection between said cranks, means preventingsaid rod and crank connection assuming a deadposition, and motorcontrolling contacts movable in definite relation with said rod andcrank connection, and a remote switch controlling said motor.

22. In combination, an electric switch,

means for restraining said switch in normal position, a member formoving said switch to normal position and for actuating said restrainingmeans upon reverse movement, a motor for actuating said member, andmotor 5 controlling contacts moved when said switch is moved, saidcontacts affecting the control of said motor for diiterent periods, oneof said contacts controlling said motor for movement of said switch tonormal position,

80 and another of said contacts controlling said motor for a shorterperiod for actuating;

said restraining means.

In combination, an electric switch, operating means therefor, anelectric motor 86 for moving said operating means in either direction,and motor controlling contacts controlling said motor for differentperiods, one of said contacts controlling said motor to move saidoperating means in one direction, and another of said contacts controlling said motor for a shorter period for operating said operating meansin opposite direction.

24. In combination, an electric switch, an

46 operating member therefor, a motor for actuating said operatingmember in either direction, a lost motion connection between said motorand said operating member, and controlling contacts movable in definiterelation with respect to said operating member and controlling saidmotor for different periods of time, one of said contacts controllingsaid motor for moving said operating member in one direction, and

66 another of said contacts cont-rolling said 60 for restraining saidswitch in normal position, a, lever for moving said switch to norunlocksaid switch upon reverse movement of said lever, a motor, a gear driventhereby, said gear permanently connected with said motor, a lost motionconnection between said gear and said lever, auxiliary switchingmechanism controlling said motor, and a double throw control switchcontrolling said motor through said switching mechanism for actuatingsaid latch or moving said main switch to normal position.

26. In combination, a main switch, a latch for restraining said switchin normal position, a lever for moving said switch to normal positionand for actuating said latch to unlock said switch upon reverse movementof said lever, a motor, a car driven thereby. said gear permancntlgvconnected with said motor, a lost motion connection between said gearand said lever, auxiliary switching mechanism controlling said motor, adouble throw control switch controlling said motor through saidswitching mechanism for actuating said latch or moving said main switchto normal position, and electro-magnetic means for actuating said latchinde peudentlv of said motor.

27. The combination with a circuit controlling said motor, anclectro-magnet brought into circult by and retaining said opcrators sitch. and a switch controlling the circuit of said motor and saidelectromagnct actuated in response to the operation of said trip coil.

28. In combination, a main switch, a latch for restraining said switchin normal position, a lever for moving said switch to norand positionand for actuating said latch to unlock said switch upon reverse movementof said lever, a motor for actuating said lever to trip said switch andto return the same to normal position, electro-magnetic means foractuating said latch independently of said motor, a double throwoperators switch controlling said motor, an electro-magnet brought intocircuit by and retaining said operators switch in both itspositions,'ar.d a switch controlling the circuit of said motor and saidelectro-magnet actuated in response to the tripping of said main switch.

In testimony whereof I have hereunto aflixed my signature in thepresence of the two subscribing witnesses.

WILLIAM M. SCOTT.

